Conext CL-20/25 E Three-Phase Power Inverter

Ideal solution for commercial buildings, carports and decentralised power plants

The ConextTM CL Series is a line of three phase string inverters designed for high efficiency, maximum flexibility and easy installation and service. Electrolyte-free design with Schneider Electric’s rigorous reliability test procedures improve the long term reliability. Five configuration options of integrated wiring box allow for easy, flexible and low cost installations. Decentralised architecture, full grid support features and system capability together with Schneider Electric’s broad range of medium voltage products make Conext CL the ideal choice for medium and large PV plants. Backed by Schneider Electric’s global service infrastructure, leading manufacturing facilities and its expertise in energy management, the Conext CL Series is the inverter you should trust for quality and reliability.


NEW firmware release for Conext CL: 

For all countries: firmware version 02.06.04 is available now. We recommend that all Conext CL inverters be upgraded to this version.

For installations in Australia (as per the AS 4777.2:2015 standard), Chile, Ireland, Netherlands, New Zealand (as per the NZS 4777.2:2015 standard), Spain and Sweden, or for using a reactive power control method: firmware version 02.08.01 is available now. If applicable, please upgrade to version 02.06.04 first, then upgrade to version 02.08.01.

These firmware packages now also include a firmware verification procedure. We recommend that you perform this procedure after the firmware upgrade procedure, to ensure that the firmware upgrade was successful.

Visit the “Download” section below for firmware upgrade instructions.

Conext CL-20/25 E

Conext CL series is a line of three phase string inverters designed for high efficiency, maximum flexibility and easy installation and service.


Why choose Conext CL-20/25 E

Higher return on investment

• High conversion efficiency: 98.3% peak efficiency, 98.0% Euro efficiency
• Great value for money: integrated wiring box saves the cost of external DC combiner box*
• Overpaneling capability to allow for maximizing energy harvest

*NOTE: An external fuse protection shall be installed if base model from available product variant is chosen

Designed for reliability

• Robust design through rigorous Multiple Environmental Over Stress Testing (MEOST), Highly Accelerated Life Test (HALT) and Temperature Humidity and Bias testing (THB)
• Electrolyte-free design to guard against dried cap issue and help to improve long term reliability
• Designed and qualified for applications in tropical environments through salt fog testing and use of conformal coating


• Five options of wiring box (base, essential, essential+, optimum and optimum+) to fit different applications
• Conformal coating and 600 hours salt fog tests allow for salty environments applications
• Easy to connect to third party monitoring systems

Easy to service

• Touch-safe fuse holder available for easy and protective fuse replacement
• Easily replaceable fan, easy firmware upgrade via USB
• Both DC and AC Surge Protection Device (SPD) with included monitoring to help to protect inverter from lightning threat (optimum model)

Easy to install

• Detachable inverter to allow for easy installation and upgrades
• Light weight with integrated handles for 2 persons installation
• Conext CL EasyConfig tool to allow for fast commissioning



Compatible products